1. Electronics Telecommunications Research Institute (ETRI)
2. Daejeon 305-700, Republic of Korea
3. Department of Solar & Energy Engineering
4. Cheongju University
5. Cheongju, Republic of Korea
6. Department of Physics and Applied Physics
7. Yonsei University
8. Seoul 120-749, Republic of Korea
9. Samsung SDI
10. Cheonan-si, Republic of Korea
11. Korea University of Science and Technology (UST)
12. Daejeon 305-350, Republic of Korea